Discusses multimedia CD-ROM, which combines sound and pictures with ASCII text on a single compact disc and can hold thousands of digitized photographs, maps, or other graphics plus sound and millions of characters of text. Discussion of Compton\u27s MultiMedia Encyclopedia, which has won a number of awards; Description of the third edition of the Grolier Electronic Encyclopedia, which includes not only text but also pictures; Mention of the Microsoft product Mammals: A Multimedia Encyclopedia from National Geographic, which is an adaptation of a two-volume set of print books; Audubon Birds of America from CMC ReSearch Inc., which features Audubon\u27s original 1840 first edition six-volume octavo set with all full-color lithographs and ful...